Additional air-supply for explosive-engines.



I N. ISAOHSON. v

ADDITIONAL AIR SUPPLY FOR EXPLOSIVE ENGINES.

' APPLIGATION FILED MEGA, 1914.

1,130,2l33. I j Patented Mar.2,1915.

A iiast I Inventor:

- orman [sac/won.

NORMAN ISACHSON, or ALBION, IDAHO.

ADDITIONAL AIR-SUPPLY FOR EXPLOSIVE-ENGINES.

Specification of Letters Patent.-

Application filed August 4, 1914. Serial No. 854,998.

T all whom it may concern 1 Be it known that I, NORMAN ISACHSON, a citizen of the United States, residing at Albion, Idaho, have invented certain new and useful Improvements in Additional Air- Supply for Explosive-Engines, of which the following is a specification.

This invention relates to an auxiliary air supply for internal combustion engines and the invention in general is in supplying additional air to the explosive charge after it has left the carburetor and before it reaches the cylinders proper of'the engine, I supplement my auxiliary supply with a' priming device.

The invention consists in the features of construction and arrangements and combination of parts hereinafter described and particularly pointed being understood that I do not wish to limit myself to the details of the different parts of my invention.

The invention is illustrated in .the accompanving drawings in which:

Figure 1 is a side elevation of the auxiliary air supply showing an ordinary attachment of it to an automobile; Fig. 2, is a side elevation of the air valve on the steering column; Fig. 3, is a sectional side view of the valve andFig. 4, is a sectional plan view.

In the drawing the numeral 1 indicates a steering column of an automobile and 2 the steering wheel thereon.

3 indicates the dashboard.

4 indicates the manifold of the engine and 5 a carbureter. Connected to the manifold at some .point between the carbureter and the engine preferably at 6, is a pipe 7 which runs, by means of suitable joints and connections =8 and 9, up along the steering column 1 until it terminates in an air valve 10, in such proximity to the steering wheel that its handle 11 may be easily operated by the driver of the automobile without removing his hand from the steering wheel. At some point in this pipe 7, preferably under the hood or bonnet is located what I call a signal oil feed cup, an article that is well known on the market and is used ordinarily as a lubricator. However, I use this cup to hold gasolene so that when it is desired to prime the engine, the driver only has to raise the handle 12 thereon to allow liquid gasolene to run down the pipe 7 therefrom into the manifold of the engine whereout in the claims, it

by the latter may be more easily started. Whenever it is desired to clean out the cylinders of the engine, kerosene or some other carbon solvent may be put into the oil feed cup and allowed to run down into the englne.

this cup for gasolene and the manifold I provide a strainer 13 adapted to strain both on which a wrench may fit and screw threads Patented Mar. 2, 1915.

At some convenient point between 17 below it whereby the device may be attached to the pipe 7'. The outer member or closure 18 of the device has secured to it a handle 11. This closure has a plurality of' openings or gates 19 of particular shape and of varying position in the closure. These openings are substantially rectangular in shape having a small-slot 20 extending upward therefrom. The small slots 20 are to permit a much finer'adjustment of the air intake than the rectangular openings alone would allow. There are preferably four of these openings which are unequally distanced from the top of the closure 18, eachsucceeding one being nearer the top, and in the same manner the slots 20 are of an increasing height so that each succeeding one extends nearer the top of the closure 18. The lower member 15 has screw threads 21 in its interior that are very sharply pitched. I have found two threads to be sufiicient, each thread making a turn of only about two hundred degrees. Depending centrally from the top of the closure 18, is a hollow tube which carries a plurality of flat fingers 23 so spaced from each other and with their extremities so inclined as to engage between them the threads 21 on the interior of the cup shaped member 16. A pin 23 extends entirely through the device passing through the hollow tube 22, carrying nuts 25 at its upper end and a rivet 26 at two parts 1(3 and 18 together.

In operation the air valve 10 is normally closed. When it is desired to start the engine it may be primed by means of my priming device which only requires the lifting of .the handle 12 to allow liquid gasolene to run ning fast, it is known that considerable air may be added to the mixture without decreasing the eiiiciency of the motor, and it can be readily seen that to do this would be to save fuel. This is what the air valve is to do. With the openings 19 differently spaced from thetop of the closure 18 of the valve and with their slots 20 of different heights, a very fine adjustment of the amount of additional air can be-obtained. As the closure 18 is rotated by means of the handle 11, the threads 21 acting upon the fingers 23 of the closure, cause it to rise and in rising above the edge of the inner member 16 admit. an

increasing amount of air by means of the.

differently disposed openings. After the closure 18 has risen to this extent, such an amount of air is admitted as to be more than enough for the explosive mixture but this is for the purpose of so diluting the mixture that there will be noexplosion in the engine as is desirable when going down hill. In this way the engine may be used as a brake under these conditions besides being cooled at the same time by the non-explosive mixover said cup shape memberhaving openings of successively increasing area therein differently distanced from the top thereof for the purpose of admitting an increasing amount of air to said pipe.

2. An auxiliary air valve for automobiles comprising a cup shaped member having a closure therefor, openings therein of successively increasing area and differently distanced from the top, and means for rotating and elevating said closure to render said openings operative comprising screw threads on theinterior of the cup shaped member, a central pin extending through the valve, and wings having differently directioned ends carried by said pin and engaging said threads.

In testimony whereof, I affix my signature in presence of two witnesses. NORMAN ISACHSON.

Witnesses:

GEORGE A. SMrrn, GEORGE CooK. 

